<template>
 <header class="my-header">LOGO</header>
</template>
<style scoped>
.my-header{
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
  width: 100%;
  height: 60px;
  background-color: #000;
  color: #fff;
}
</style>